public void Upload_SCN_CA_File(FormCollection formCollection)
        {
            if (Request != null)
            {
                HttpPostedFileBase file = Request.Files["UploadedFile"];
                if ((file != null) && (file.ContentLength > 0) && !string.IsNullOrEmpty(file.FileName))
                {
                    string fileName = file.FileName;
                    Debug.WriteLine(fileName);
                    string fileContentType = file.ContentType;
                    byte[] fileBytes = new byte[file.ContentLength];
                    var data = file.InputStream.Read(fileBytes, 0, Convert.ToInt32(file.ContentLength));
                }
            }
        }

$("#upload").on("click",function () {
        $.ajax({
            type: "POST",
            url: "/Order/Upload_SCN_CA_File",
            data: {
                enctype: 'multipart/form-data'
            },
            success: function (response) {
                if (response.result == false) {
                    swal("Error", response.message, "error");
                }
                else {
                    swal("Success", response.message, "success");
                }
            }
        });
   }

<form>
                    <div class="row">
                        <div class="col">
                            <input name="UploadedFile" id="upfile" type="file" />
                        </div>
                    </div>
                    <div class="row">
                        <div class="col">
                            <div class="btn btn-primary rounded" id="upload" style="margin:8px">Upload</div><br>
                        </div>
                    </div>
                </form>